Unified search: add placeholder icon for Deck

Signed-off-by: Álvaro Brey Vilas <alvaro.brey@nextcloud.com>

src/main/java/com/owncloud/android/ui/adapter/UnifiedSearchItemViewHolder.kt

@@ -97,6 +97,8 @@ class UnifiedSearchItemViewHolder(
                     ResourcesCompat.getDrawable(context.resources, R.drawable.file_vcard, null)
                 startsWith("icon-calendar") ->
                     ResourcesCompat.getDrawable(context.resources, R.drawable.file_calendar, null)
+                startsWith("icon-deck") ->
+                    ResourcesCompat.getDrawable(context.resources, R.drawable.ic_deck, null)
                 else ->
                     MimeTypeUtil.getFileTypeIcon(mimetype, entry.title, context)
             }

src/main/res/drawable/ic_deck.xml

@@ -0,0 +1,18 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="16dp"
+    android:height="16dp"
+    android:viewportWidth="16"
+    android:viewportHeight="16">
+  <path
+      android:pathData="M2,7L14,7A1,1 0,0 1,15 8L15,14A1,1 0,0 1,14 15L2,15A1,1 0,0 1,1 14L1,8A1,1 0,0 1,2 7z"
+      android:fillColor="#fff"/>
+  <path
+      android:pathData="M2.5,5L13.5,5A0.5,0.5 0,0 1,14 5.5L14,5.5A0.5,0.5 0,0 1,13.5 6L2.5,6A0.5,0.5 0,0 1,2 5.5L2,5.5A0.5,0.5 0,0 1,2.5 5z"
+      android:fillColor="#fff"/>
+  <path
+      android:pathData="M3.5,3L12.5,3A0.5,0.5 0,0 1,13 3.5L13,3.5A0.5,0.5 0,0 1,12.5 4L3.5,4A0.5,0.5 0,0 1,3 3.5L3,3.5A0.5,0.5 0,0 1,3.5 3z"
+      android:fillColor="#fff"/>
+  <path
+      android:pathData="M4.5,1L11.5,1A0.5,0.5 0,0 1,12 1.5L12,1.5A0.5,0.5 0,0 1,11.5 2L4.5,2A0.5,0.5 0,0 1,4 1.5L4,1.5A0.5,0.5 0,0 1,4.5 1z"
+      android:fillColor="#fff"/>
+</vector>